Tin and sheet bar heater.



C. HILLMAN. TIN AND SHEET BAR HEATER. APPLIOATIOH FILED rm, 1 90 9.

Patented Mail, 1910.

Elm 004M306 272214222 Wane-0am skilled in the art to I chains onuprights, 6,- 18' a suitable bed CHARLES HILLMAN, OF NEW CASTLE,PENNSYLVANIA.

TIN AND SHEET BAR HEATER.

Specification of Letters Patent.

Patented Mar. 1, 1910.

Application filed February 4, 1909. Serial No. 476,132.

To all whom it may concern:

Be it known that I, CHARLES HILLMAN, a citizen of the United States,residing at New Castle, in the county of Lawrence and State ofPennsylvania, have and useful Improvementsin Tin and Sheet Bar Heaters;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others which itappertains to make and use the same.

My invention relates to heaters for heating sheets of tin or barsof-metal.

The object of the invention is to provide a simple and inexpenslvedevice of this char acter which may be readily and easily installed andwhich will prevent the excessive dust prevalent in the annealing roomsof rolling mills.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully described and particularly pointed out in. theappended claim.

In the drawings: tion of the heater, showing the culvert or bosh insection; Fig. 2 is a longitudinal section of the heater; and Fig. 3 is atransverse section thereof.

Referring more especially to the drawings, 1 and 2 represent transverseshafts which ex tend from side to jacent each end of the shafts l and 2I provide heavy sprocket wheels, 3, over which run the supportingsprocket chains, 4. These sprocketchains engaging hooks or arms, 5,which are adapted to engage and carry end'sheets or bars between theheaters which will be hereinafter described. The operating or drivingmechanism for these chains is not shown herein as it forms no particularpart of this invention but it will be understood that the shafts 1 and 20 early are riven simultaneously and that the sprocket wheels 3 arekeyed to the shaft with their teeth in alinement.

Supported beneath the upper reach ofl the ate 7, upon whlch are mountedthe heat coils,"8: and separated from the bed plate, 7 is a suitableframe, 9, upon which the upper heatinvented certain new Figure 1 is aside elevaside of the culvert. Ad-

are provided at predeten mined intervals with v means on the chains foring coils, 10, are supported. This upper frame is arranged apredetermined distance above the chains, 4, so that the material carriedby the chains passes between the coils, 8 and 10. The coils may beconnected in any suitable manner to the generator and may be arranged inthe circuit in series or in par-. allel as is found desirable.

Extending on either side of the chains and on either side of thesprocket wheels are separate bars, a and b which are supported bystandards d at such a height as to prevent the chains from sagging underthe weight of thematerial carried thereby into engagement with the lowerheating coils. This structure does not form any part of applicautsinvention and is only shown in order to make the device a more operativeone, as without the. bars, the chains frequently sag sutti ciently topermit the material to contact and disrupt the heating coil.

From the foregoing description taken in connection with the accompanyixwdrawings. the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

. Various changes in the form, proportion and the minor details ofconstruction may he resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claim.

Having thus described my invention, what I claim and desire to secure byLetters-Patent, is

In combination with an open ended cul vert, a pair of shafts, separatedsprocket wheels thereon, chains connecting said shafts. supportingmaterial uprights on theoutside of the chains, :1 bed plate mounted onthe uprights and arranged beneath the upper stretch of frame supportedon the uprights above the upper stretch of chains, and electricalheating coils'supported on said bed plate and frame.

In testimony whereof I have hereunto set 100 my hand in presence of twosubscribing witnesses.

CHARLES HILLMAN. Witnesses WM. A. Jones,

M. E. Chasm.

the chains, :1

